It has nothing to do with the age of the Mac. It has to do with the Version of Lightroom Classic. Once a catalog has been upgraded to work with a newer version, it can not be used with an older version of LrC.
They need to be forward-upgraded and are not backward-compatible.
That said, on the 2022 model, a newer version was installed, and your catalog has been upgraded, but not without a message showing to inform you, that you eventually ignored.
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